GITANK WIRELESS BLUETOOTH MUSIC INTERFACE ADAPTOR FOR IN CAR IPOD INTEGRATION
Looks like the S10's still support LDAC. : r/galaxys10
Solved: How to turn on APTX and LDAC on exynos S10 - Samsung Members
Amazon.com: CHOOCL Bluetooth 5.0 aptX-HD Adapter Compatible for 2010-2019 Year Audi AMI MMI 3g and 2005-2011 Year Mercedes 30-Pin iPod iPhone Media Interface (1000) : Electronics